142775212 has 12 divisors (see below), whose sum is σ = 257916736. Its totient is φ = 69084720.

The previous prime is 142775203. The next prime is 142775219. The reversal of 142775212 is 212577241.

It is a super-2 number, since 2×142775212² = 40769522323289888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (142775219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575583 + ... + 575830.

Almost surely, 2^142775212 is an apocalyptic number.

It is an amenable number.

142775212 is a deficient number, since it is larger than the sum of its proper divisors (115141524).

142775212 is a wasteful number, since it uses less digits than its factorization.

142775212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151448 (or 1151446 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 142775212 is about 11948.8581881283. The cubic root of 142775212 is about 522.6580027791.

The spelling of 142775212 in words is "one hundred forty-two million, seven hundred seventy-five thousand, two hundred twelve".